Trailing arm cross member - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72SUBGUY · 05-19-2023, 12:50 PM

I'm looking for a trailing arm cross member that can pass single 4" exhaust.
All the ones I'm finding are 3 - 3.5"
Anyone have experience with one that will work for me?

I'm have a 72 with a 6.0 turbo LS 4" Flowmaster muffler with a dump underneath and it just sucks to drive.
I'd really like to get the 4" out the back.
The other thought I have is possibility is splitting the 4" into two 3" or 3.5" to get it out the back.

05-19-2023, 12:50 PM	#1
72SUBGUY Registered User Join Date: Oct 2020 Location: New Holstein, WI Posts: 32	Trailing arm cross member I'm looking for a trailing arm cross member that can pass single 4" exhaust. All the ones I'm finding are 3 - 3.5" Anyone have experience with one that will work for me? I'm have a 72 with a 6.0 turbo LS 4" Flowmaster muffler with a dump underneath and it just sucks to drive. I'd really like to get the 4" out the back. The other thought I have is possibility is splitting the 4" into two 3" or 3.5" to get it out the back.



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